基于多尺度影像数据融合的实景三维建模  

Realistic 3D Modeling Based on Multi-scale Image Data Fusion

作　　者：刘小军 杜文俊 龚绪才 LIU Xiaojun;DU Wenjun;GONG Xucai(Yunnan Provincial Basic Surveying and Mapping Technology Center,Kunming 650034,China)

机构地区：[1]云南省基础测绘技术中心,云南昆明650034

出　　处：《测绘与空间地理信息》2024年第12期136-139,共4页Geomatics & Spatial Information Technology

摘　　要：针对如何建立大面积区域的精细化实景三维模型,提出了一种多源数据(倾斜影像、贴近影像和近地面影像)集成的建模方法。分析了单独倾斜影像数据建模模型产品存在缺陷的原因,从多源数据融合建模的角度分析了精细化建模的可行性;在此基础上,以大理洱海生态保护“三线”划定实景三维建模为例,验证了多源数据融合建模方法在实际项目中的可行性,获得了重点区域的大尺度实景三维模型;最后,对模型效果和精度进行了比较分析。结果表明,该方法能够满足精细化建模需求。A modeling method that integrates multiple sources of data(oblique images,close-range images,and near-ground images)is proposed for establishing a refined realistic 3D model of a large area.The reasons for the defects of the product of the individual oblique image data model are analyzed,and the feasibility of refined modeling is analyzed from the perspective of multi-source data fusion modeling;on this basis,the three-dimensional modeling of the"three-line"delineation of the ecological protection of Erhai Lake in Dali is taken as an example,the feasibility of application of multi-source data fusion modeling method in practical projects was verified,and large-scale realistic 3D models of key areas were obtained;finally,a comparative analysis was conducted on the model′s performance and accuracy.The results indicate that this method can meet the requirements of refined modeling.

关 键 词：多源数据融合建模 实景三维模型 贴近摄影测量 倾斜摄影测量 

分 类 号：P237[天文地球—摄影测量与遥感]